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Can the EX2 Ultra support an exfat formatted USB drive for backups?

was wondering … I want to get USB backups setup using a 5TB MyBook connected to the EX2 ultra …
if the MyBook is formatted as exfat, will the NAS see it and successfully backup to it ?

which of the 2 formats, NTFS or HFS+ would be best for data integrity ? I can access either one from macOS or windows

i am going to go with HFS+J, it’s a file system that i can access from both Windows and macOS when I plug the drive in directly to my mbp

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